.article-bar {
    
    .btn {
        color: #fff;
        font-weight: bold;
    }
    
    &--item {
        margin: 8px 0;
    }

    .navbar-right {
        margin-right: 15px;
    }

    @each $category, $color in $categories {
        &.#{$category} {
            background-color: $color;
        }
    }

    .contraste & {
        background-color: #262626;
    }
}